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ventricular     
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    Studies of Establishing Animal Model and Mechanism of Ventricular Tachycarida with Ishemia Cardiomyopathy and Mapping and Catheter Ablation of Ventricular Tachycardia Using Non-contact Mapping System
    缺血性心脏病性心动过速模型建立、机制探讨及非接触球囊标测系统在性心动过速标测和消融中的应用
短句来源
    Effects of Carvedilol and Fosinopril Treatment on Left Ventricular Remodeling after Acute Myocardial Infarction in Rats
    卡维地洛、福辛普利及二者合用对大鼠心肌梗死后左重构影响的实验研究
短句来源
    Effects of Estradiol on the MMPs/TIMPs of Rat Cardiac Fibroblasts and Its Role in the Pathogenesis of Left Ventricular Hypertrophy Associated with Hypertension
    雌二醇对大鼠心脏成纤维细胞MMPs/TIMPs的影响及其与高血压左肥厚关系的研究
短句来源
    Lipopolisaccharide-Induced Cardiac Inflammation and Left Ventricular Dysfunction: Role of Toll-Like Receptor-4 in the Adult Heart
    Toll样受体4在内毒素诱导的小鼠心肌炎症因子表达和左功能不全中的作用
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    A Clinical Study of Reversed Effect on the Formation of Ventricular Aneurysm by PCI and the Level Change of Myocardial Necrotic Inflammatory Markers in Patients with Acute Myocardial Infarction
    PCI对急性心肌梗死壁瘤的逆转效应及其心肌坏死炎症标记物水平变化的临床研究
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  心室
    Effects of Acute Myocardial Infarction and Simulated Ischemia on the Ionic Channel Currents in Rabbit Ventricular Myocytes
    急性心肌梗死及模拟心肌缺血对心室肌细胞离子通道活性的影响
短句来源
    Effects of Matrix Metalloproteinase on Left Ventricular Remodeling After Myocardial Infarction in Rats
    基质金属蛋白酶在大鼠心梗模型左心室重塑中的作用
短句来源
    Studies on Changes of Delayed Rectifier Potassium Current(I_k) and L-type Calcium Current (I_(Ca,L)) During Ischemic Preconditioning in Guinea Pig Ventricular Myocytes
    豚鼠心室肌细胞膜延迟整流钾通道电流(I_k)及L型钙通道电流(I_(Ca,L))在缺血预适应过程中的变化的实验研究
短句来源
    Effects of Simvastatin on Cardiac Myocytes Hypertrophy and PI3K/PKB Expression and Its Relationship with Left Ventricular Hypertrophy Associated with Hypertension
    辛伐他汀对大鼠心肌细胞肥大和PI3K/PKB途径的影响及其与高血压左心室肥厚关系的研究
短句来源
    Study of Mechanism of Calcium Transport in Excitation Contraction Coupling of Guinea-pig Ventricular Myocytes
    豚鼠心室肌细胞兴奋收缩耦联钙转运调控机制的研究
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    Effects of Simvastatin on Cardiac Myocytes Hypertrophy and PI3K/PKB Expression and Its Relationship with Left Ventricular Hypertrophy Associated with Hypertension
    辛伐他汀对大鼠肌细胞肥大和PI3K/PKB途径的影响及其与高血压左室肥厚关系的研究
短句来源
    Experimental Study on the Effects of L-carnitine Early Treatment on Left Ventricular Remodeling, Cardiac Function after Acute Myocardial Infarction in SD Rats and It's Mechanism
    L-carnitine早期干预对急性肌梗死大鼠左室重塑、功能的影响及其作用机制的研究
短句来源
    Effect of Angiotensin Ⅱ Receptor Blockers on Calcium Regulation in Isolated Ventricular Myocytes of Rats from Heart Failure
    血管紧张素Ⅱ受体拮抗剂对力衰竭肌细胞钙调控的影响
短句来源
    The Experimental and Clinical Studies on the Ventricular Interaction
    左右疾病相互影响的实验及临床研究
短句来源
    NON-INVASIVE LEFT VENTRICULAR FUNCTION TEST (LVFT) IN 164 NORMAL MIDDLE-AGED AND OLDER SUBJECTS
    中老年正常人的无损伤性左功能检查——164例分析
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  心室的
    Experimental study on transcatheter microwave ablation of the right ventricular myocardium
    经导管微波消蚀右心室的实验研究
短句来源
    Expression of TGF β_1 in the Left Ventricular Tissue and its Relations to Left Ventricular Hypertrophy and Myocardial Interstitial Fibrosis in Renovascular Hypertensive Rats
    转化生长因子β1在肾血管性高血压大鼠左心室的表达及与左室肥厚和心肌纤维化的关系探讨
短句来源
    2. electro - physiological examinations: using Seldinger technique to establish two passway of right femoral vein, one passway of left subclavicular vein, send measure electrode to coronary sinus, right ventricle, right atrium, and His branch, synchronized record the surface and intra - cardiac ECG, separately perform atrial and ventricular program S1S2 stimulation, gradually increase S1S2 stimulation to induce tachycardia.
    2.电生理检查:以Seldinger技术建立右股静脉通路2条,左锁骨下静脉通路1条,将标测电极送至冠状静脉窦、右心室、右心房和希氏束,同步记录体表及心内电图,分别行心房和心室的程序S_1S_2刺激,分级递增S_1S_1刺激诱发心动过速。
短句来源
    Left and right ventricular Tei index was negatively correlated with s , EF , and Ea/Aa. Right ventricular Tei index,EF, Ea/Aa, E/A was positively correlated with that of the left ventricular respectively.
    左、右心室的Tei 指数分别与左、右心室S 值、EF、Ea/Aa 呈轻度负相关(r 分别为-0.35/-0.34,-0.5/-0.45,-0.35/-0.38, P <0.01),而与E/A 无相关性(r=-0.06/-0.07,P>0.05)。
短句来源
    Tei index was valuable and easy for estimating left and right ventricular systolic and diastolic functions with high sensitivity.
    Tei 指数能简便、敏感、综合评价高血压病患者左、右心室的收缩和舒张功能,是一项评价心功能的多普勒超声新指标。
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  ventricular
Twenty cases still had other congenital heart diseases: ventricular septal defect (19 cases), patent ductus arteriosus (two cases), double-chambered right ventricle (one case), aneurysm of the right anterior aortic sinus of valsalva (three cases).
      
Sudden death due to arrhythmogenic right ventricular cardiomyopathy: Two case reports
      
Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a kind of primary myocardial disease characterized by the regional or global replacement of right ventricular myocardium by fatty and fibrolipomatous tissues.
      
One of the victims had extensive and severe pathological changes in his heart involving the left ventricular wall as well as the ventricular septum and the right atrium.
      
The human cells were isolated from the ventricular brain zone of 9-week-old embryos and cultivated for two weeks before transplantation.
      
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(1)The cardiac disturbances of hypothermic dog under ether anaesthesia showed the following types:ventricular fibrillation,asystole or asystolic fibrillation.The mean terminal temperature of animals was 16.9±1.14℃.There was no correlation between the type of cardiac disturbance and the value of the terminal temperature. (2)The hypothermic ventricular fibrillation of dog could be completely prevented by systemic administration of hypertonic glucose solution,whereas hypertonic sucrose solution was...

(1)The cardiac disturbances of hypothermic dog under ether anaesthesia showed the following types:ventricular fibrillation,asystole or asystolic fibrillation.The mean terminal temperature of animals was 16.9±1.14℃.There was no correlation between the type of cardiac disturbance and the value of the terminal temperature. (2)The hypothermic ventricular fibrillation of dog could be completely prevented by systemic administration of hypertonic glucose solution,whereas hypertonic sucrose solution was ineffective in this regard.The mean terminal temperature of the experimental animal was not changed by the administration of either of these solutions.It was therefore suggested that glucose exerted a specific action on the hypothermic cardiac metabolism. (3)Yohimbine,quinidine and molar sodium lactate failed to prevent ventricular fibrillation under our experimental conditions. (4)Administration of procaine markedly reduced the incidence of hypothermic ventricular fibrillation,with a significant lowering of the mean terminal temperature to 12.3±1.13℃,per- haps owing to its trophic action on the cardiac muscle. (5)On the basis of afore-mentioned data,the concept that metabolic disturbances in cardiac muscle induced by hypothermia per se was the causative factor in the occurrence of ventricular fibril- lation might be advanced.

(一)在乙醚麻醉下,低温所致狗心脏活动障碍有三种型式,即心室颤动、心跳停止和心跳停止式心室颤动。动物的最终死亡温度为16.9±1.14℃。在最终温度与心脏活动障碍的型式之间,并无任何依从关系。(二)高渗葡萄糖溶液能防止低温下心脏发生颤动,但不能使动物死亡的最终温度降低。高渗蔗糖溶液并无此类作用,这说明葡萄糖对低温心肌代谢有特异作用。(三)育亨宾、奎尼丁和乳酸钠并不能防止低温性心室颤动的发生,由此表明交感-肾上腺系统的机能亢进、酸中毒等并非低温性心室颤动的重要诱因。(四)应用普鲁卡因溶液能显著减少低温性心室颤动的发生,并使动物的最终温度明显降至12.3±1.13℃(P<0.01)。普鲁卡因的这种效应似应归之于它对心肌组织的良性营养作用。(五)基于葡萄糖和普鲁卡因对低温所致心室颤动有良好的防止效果,因而有理由认为低温性心室颤动是低温直接引起心肌内代谢失调的结果。(六)本工作的结果可能为临床上防止低温性心室颤动提供有效措施。

Cardiac output was determined according to Fick's principle, while renaI blood flow (RBF) and glomerular filtration rate (GFR) were measured from the clearances of PAH and creatinine. One hour after an i.v. injection of guanethidine 5 mg/kg, normal dogs showed a very slight hypotension, which was relatively more noticeable in renal hypertensive dogs. The cardiac output, stroke volume, and ventricular work tended to decrease tn normotensive dogs, but tended to augment in hypertensive dogs. These alterations,...

Cardiac output was determined according to Fick's principle, while renaI blood flow (RBF) and glomerular filtration rate (GFR) were measured from the clearances of PAH and creatinine. One hour after an i.v. injection of guanethidine 5 mg/kg, normal dogs showed a very slight hypotension, which was relatively more noticeable in renal hypertensive dogs. The cardiac output, stroke volume, and ventricular work tended to decrease tn normotensive dogs, but tended to augment in hypertensive dogs. These alterations, however, were statistically insignificant. The total peripheral resistance was not much influenced by guanethidine in normal dogs, yet markedly diminished in hypertensive dogs. Diuresis was evident during the 1-hour postmedication period in both models. In hypertensive dogs, i.v. administrations of guanethidine caused a conspicuous rise of RBF and GFR, but a great reduction of the renal vascular resistance. In normal rats, following an i.p. injection of 20 mg/kg, the circulating blood volume (studied with I~(131)-labeled serum protein) exhibited a slight but non-significant increase within 3 hours, and returned to the original level at 24 hours. No significant change was found in DOCA-treated rats. Normal rats receiving guanethidine revealed an increase of blood volumes in all organs, especially spleen and kidney. These results demonstrate that the hypotensive action of guanethidine is not via the reduction of blood volume, but by way of a vasodilator action, which particularly amends the ischemic state of kidney and thus alleviates the pathologic process of renal hypertension.

本文用正常血压及腎型高血压狗研究胍乙啶对心和腎的血流动力作用,并用大白鼠試驗其对循环及器官血容量的影响。根据Fick氏原則測定心輸出量,同时从腎脏对于对氨基馬尿酸及肌酐的清除率計算腎血流量及腎小球滤过率。靜脉注射胍乙啶5毫克/公斤1小时后,正常狗血压略有降低,高血压狗降压則較为明显。胍乙啶对正常血压狗的心輸出量、心搏量及心室作功量有減 低的趋向,而对腎型高血压狗則略有增加,但均不显著。胍乙啶不影响正常狗的外周血管阻力,而能显著降低腎型高血压狗的总外周阻力,扩张其外周血管。注射胍乙啶后,正常血压及腎型高血压狗的尿量增加均非常显著。腎型高血压狗的腎小球滤过率及腎血流量都非常显著地低于正常狗,腎血管阻力則大大地高于正常狗,靜脉注射胍乙啶后,滤过率及血流量均明显增加,而血管阻力則大大降低。正常大白鼠腹腔注射胍乙啶20毫克/公斤后,3小时內循环血量略有增加,但不显著,6小时后开始恢复,2斗小时后回至原水平。对注射DOCA的大白鼠的循环血量則沒有明显影响。正常大白鼠注射胍乙啶后,各器官及組織內合血量普遍有增加趋势,其中以脾及腎的血容量增加最为明显,說明胍乙啶对这些部位的血管有扩张作用。上述資料証明:胍乙啶的降压作用并非通...

本文用正常血压及腎型高血压狗研究胍乙啶对心和腎的血流动力作用,并用大白鼠試驗其对循环及器官血容量的影响。根据Fick氏原則測定心輸出量,同时从腎脏对于对氨基馬尿酸及肌酐的清除率計算腎血流量及腎小球滤过率。靜脉注射胍乙啶5毫克/公斤1小时后,正常狗血压略有降低,高血压狗降压則較为明显。胍乙啶对正常血压狗的心輸出量、心搏量及心室作功量有減 低的趋向,而对腎型高血压狗則略有增加,但均不显著。胍乙啶不影响正常狗的外周血管阻力,而能显著降低腎型高血压狗的总外周阻力,扩张其外周血管。注射胍乙啶后,正常血压及腎型高血压狗的尿量增加均非常显著。腎型高血压狗的腎小球滤过率及腎血流量都非常显著地低于正常狗,腎血管阻力則大大地高于正常狗,靜脉注射胍乙啶后,滤过率及血流量均明显增加,而血管阻力則大大降低。正常大白鼠腹腔注射胍乙啶20毫克/公斤后,3小时內循环血量略有增加,但不显著,6小时后开始恢复,2斗小时后回至原水平。对注射DOCA的大白鼠的循环血量則沒有明显影响。正常大白鼠注射胍乙啶后,各器官及組織內合血量普遍有增加趋势,其中以脾及腎的血容量增加最为明显,說明胍乙啶对这些部位的血管有扩张作用。上述資料証明:胍乙啶的降压作用并非通过循环血量的減少,而是由于外周血管的扩张所致。胍乙啶能扩张腎血管,改善腎缺血状态,从而緩解腎型高血压的病理生理过程。

In order to improve the work of electrocardiography in children, theliterature has been reviewed and 4 points are discussed in this paper. 1. Technique of recording: Direct writing ECG machine with elec-trodes of adequate sizes for different ages, the application of electrodepaste to a limited area and to keep the baby quiet during ECG exami-nation are essential for good recording. In addition to the usual precordialleads, V_3R or V_4R should be recorded. A paper speed of 50mm persecond for newborns and infants...

In order to improve the work of electrocardiography in children, theliterature has been reviewed and 4 points are discussed in this paper. 1. Technique of recording: Direct writing ECG machine with elec-trodes of adequate sizes for different ages, the application of electrodepaste to a limited area and to keep the baby quiet during ECG exami-nation are essential for good recording. In addition to the usual precordialleads, V_3R or V_4R should be recorded. A paper speed of 50mm persecond for newborns and infants is proposed. 2. Normal values of electrocardiography in children: The normalvalues of ECG in children should reflect not only the proper age of thechild examined but also should be simple, clear and easy for clinicalapplication. By using the data of our studies and those of others inChina, a set of normal values has been worked out. 3. The ECG criteria of ventricular hypertrophy for Chinese children:These criteria are proposed with a discussion of their sensitivity andaccuracy in diagnosis. In case of right ventricular hypertrophy, the sensi-tivity is high but accuracy low, and a false positive diagnosis is easilymade. The younger the age, the more difficult the differentiation of thepathologic right ventricular hypertrophy from physiologic right ventricularpredominance. 4. Overloading of ventricles: Based upon the physiology of ventri-cular overloading and the data of clinical and ECG studies, Cabrara pro-posed the ECG criteria of various ventricular overloadings. It is general-ly accepted that the ECG of a child with overloading of the ventriclesis helpful in the diagnosis of congenital heart disease, although some wri-ters do not quite agree with him.

本文作者复习文献并合结自己的研究资料,提出简明实用的小儿心电图正常值及小儿心室肥厚的诊断标准,以供参考。

 
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